On the Personal tab, in the Certificates window, select the code signing certificate you plan to export, and then click Export.
The Certificate Export Wizard will open. Click Next.
On the Export Private Key page, select Yes, export private key, and then click Next.
On the Export File Format page, select Personal Information Exchange -PKCS # 12 (. PFX), then select "If possible, include all certificates in the certificate path" and click Next.
On the Security tab, click Password. Then enter your password in the Password and Confirm Password fields and click Next.
On the File to Export page, click Browse and select the path to export. Pfx file, specify its name, click Save, and then click Next. Yes. The pfx file uses the same format as. p 12 or PKCS 12.
On the Completing the Certificate Export Wizard page, review the settings and click Finish.
When you receive the message "Export succeeded", click OK.